poetry:
Entering a Coat-of-Arms (Vstupovanie do erbu, 1965),
Medium (Médium, 1968),
A Shallowing Mirror (Zrkadlo čoraz plytšie, 1970),
Aletheia (Alétheia, 1971),
A Burning Handle (Horiaca rukoväť, 1974),
Resins (Živice, 1979),
Endurance for Questions (Vytrvalosť k otázkam, 1988),
Reflection of Fire (Odraz ohňa, 1993),
Seven Rivers (Sedemriečie, 1989, selected poems)
essays:
On the Northern Threshold (Na severnom prahu, 1983), Under the Northern Coat-of-Arms (Pod erbom severu, 1997)
translations by the author:
Kovalčík translated tens of books of poetry from Polish, French, Russian, Slovenian, and Sorbian, by such authors as: J. Supervielle, S. -J. Perse, K. Lorenc, J. Udovitch, Z. Bienkowski, C. Norwid, J. Twardowski, M. Grzesczak, W. Szymborska, Z. Herbert, and two books of K. Wojtyla (Pope John Paul II.).
works translated:
A Key of Light (1998 Polish)
His poems, translated into German, French, English and several Slavic languages, were published in more than twenty anthologies of Slovak poetry.
